Home / 1,491,868.80-2,058,802.56-812,805.12

Finding the Fourth Proportional to 1,491,868.80, 2,058,802.56 and 812,805.12

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Solution

The fourth proportional to 1,491,868.80, 2,058,802.56 and 812,805.12 is: 1,121,683.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,868.80 : 2,058,802.56 = 812,805.12 : x
  2. Step 2: Convert to fraction form
    1,491,868.80/2,058,802.56 = 812,805.12/x
  3. Step 3: Cross multiply
    1,491,868.80x = 2,058,802.56 × 812,805.12
  4. Step 4: Simplify right side
    1,491,868.80x = 1,673,405,261,837.11
  5. Step 5: Solve for x
    x = 1,673,405,261,837.11/1,491,868.80
  6. Step 6: Final answer
    x = 1,121,683.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.